From: Jens Axboe <axboe@suse.de>
To: Helge Hafting <helge.hafting@hist.no>
Cc: Robert Love <rml@novell.com>, Kyle Moffett <mrmacman_g4@mac.com>,
Con Kolivas <kernel@kolivas.org>,
Jeff Sipek <jeffpc@optonline.net>,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Time sliced CFQ #2
Date: Mon, 6 Dec 2004 13:24:44 +0100 [thread overview]
Message-ID: <20041206122444.GW10498@suse.de> (raw)
In-Reply-To: <41B44E03.8090007@hist.no>
On Mon, Dec 06 2004, Helge Hafting wrote:
> Jens Axboe wrote:
>
> >On Mon, Dec 06 2004, Robert Love wrote:
> >
> >
> >>
> >> (1) separate the two values. we have a scheduling
> >> priority (distributing the finite resource of
> >> processor time) and an I/O priority (distributing
> >> the finite resource of disk bandwidth).
> >> (2) just have a single value.
> >>
> >>
> >
> >They are inherently seperate entities, I don't think mixing them up is a
> >good idea. IO priorities also includes things like attempting to
> >guarentee disk bandwidth, it isn't always just a 'nice' value.
> >
> >
> Two separate entities is fine. Those who want just one
> entity can use a "nice wrapper" that sets both
> simultaneously.
Did you happen to catch any info out of the crash?
--
Jens Axboe
next prev parent reply other threads:[~2004-12-06 12:25 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-04 10:49 [PATCH] Time sliced CFQ #2 Jens Axboe
2004-12-04 16:39 ` Jeff Sipek
2004-12-05 18:58 ` Jens Axboe
2004-12-06 0:29 ` Jeff Sipek
2004-12-06 1:59 ` Con Kolivas
2004-12-06 2:23 ` Jeff Sipek
2004-12-06 2:34 ` Con Kolivas
2004-12-06 5:00 ` Kyle Moffett
2004-12-06 5:14 ` Robert Love
2004-12-06 7:19 ` Jens Axboe
2004-12-06 12:18 ` Helge Hafting
2004-12-06 12:24 ` Jens Axboe [this message]
2004-12-06 12:21 ` Kyle Moffett
2004-12-06 16:42 ` Robert Love
2004-12-06 17:42 ` P
2004-12-06 7:15 ` Jens Axboe
2004-12-06 7:13 ` Jens Axboe
2004-12-05 14:21 ` Ed Tomlinson
2004-12-05 15:18 ` Jens Axboe
2004-12-05 17:58 ` Ed Tomlinson
2004-12-06 9:31 ` Prakash K. Cheemplavam
2004-12-06 9:35 ` Jens Axboe
2004-12-06 11:48 ` Ed Tomlinson
2004-12-06 12:31 ` Prakash K. Cheemplavam
2004-12-06 13:27 ` [PATCH] Time sliced CFQ #3 Jens Axboe
2004-12-06 14:01 ` Søren Lott
2004-12-06 15:01 ` Jens Axboe
2004-12-06 15:45 ` Jens Axboe
2004-12-06 15:07 ` Prakash K. Cheemplavam
2004-12-06 23:30 ` Ed Tomlinson
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